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| author | Cyrille Bagard <nocbos@gmail.com> | 2013-06-30 13:01:38 (GMT) | 
|---|---|---|
| committer | Cyrille Bagard <nocbos@gmail.com> | 2013-06-30 13:01:38 (GMT) | 
| commit | e5314b83cf2521f4a1fee5d3cbb5011d7ac7bff7 (patch) | |
| tree | 3af6d5b430d3a07753e273e9ddb1ff656e706661 /src/arch/arm/v456/register.c | |
| parent | 0f3bbcb376ee4f76142ac4ddf729403fecac2641 (diff) | |
Provided first basic support for a few ARM instructions.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@354 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/arch/arm/v456/register.c')
| -rw-r--r-- | src/arch/arm/v456/register.c | 251 | 
1 files changed, 251 insertions, 0 deletions
| diff --git a/src/arch/arm/v456/register.c b/src/arch/arm/v456/register.c new file mode 100644 index 0000000..7e101a3 --- /dev/null +++ b/src/arch/arm/v456/register.c @@ -0,0 +1,251 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * registers.c - aides auxiliaires relatives aux registres ARM v4/5/6 + * + * Copyright (C) 2013 Cyrille Bagard + * + *  This file is part of OpenIDA. + * + *  OpenIDA is free software; you can redistribute it and/or modify + *  it under the terms of the GNU General Public License as published by + *  the Free Software Foundation; either version 3 of the License, or + *  (at your option) any later version. + * + *  OpenIDA is distributed in the hope that it will be useful, + *  but WITHOUT ANY WARRANTY; without even the implied warranty of + *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the + *  GNU General Public License for more details. + * + *  You should have received a copy of the GNU General Public License + *  along with Foobar.  If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "register.h" + + +#include <stdio.h> + + +#include "../../register-int.h" + + + +/* Représentation d'un registre ARM v4/5/6 (instance) */ +struct _GArmV456Register +{ +    GArchRegister parent;                   /* Instance parente            */ + +    uint8_t index;                          /* Indice du registre          */ + +}; + + +/* Représentation d'un registre ARM v4/5/6 (classe) */ +struct _GArmV456RegisterClass +{ +    GArchRegisterClass parent;              /* Classe parente              */ + +}; + + +#define MAX_REGNAME_LEN 8 + + +/* Initialise la classe des registres ARM v4/5/6. */ +static void g_armv456_register_class_init(GArmV456RegisterClass *); + +/* Initialise une instance de registre ARM v4/5/6. */ +static void g_armv456_register_init(GArmV456Register *); + +/* Produit une empreinte à partir d'un registre. */ +static guint g_armv456_register_hash(const GArmV456Register *); + + + +/* Indique le type défini pour une représentation d'un registre ARM v4/5/6. */ +G_DEFINE_TYPE(GArmV456Register, g_armv456_register, G_TYPE_ARCH_REGISTER); + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : klass = classe à initialiser.                                * +*                                                                             * +*  Description : Initialise la classe des registres ARM v4/5/6.               * +*                                                                             * +*  Retour      : -                                                            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static void g_armv456_register_class_init(GArmV456RegisterClass *klass) +{ + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : reg = instance à initialiser.                                * +*                                                                             * +*  Description : Initialise une instance de registre ARM v4/5/6.              * +*                                                                             * +*  Retour      : -                                                            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static void g_armv456_register_init(GArmV456Register *reg) +{ +    GArchRegister *base;                    /* Version basique             */ + +    base = G_ARCH_REGISTER(reg); + +    base->hash = (reg_hash_fc)g_armv456_register_hash; +    base->compare = (reg_compare_fc)g_armv456_register_compare; +    base->print = (reg_print_fc)g_armv456_register_print; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : index = indice du registre correspondant.                    * +*                                                                             * +*  Description : Crée une réprésentation de registre ARM v4/5/6.              * +*                                                                             * +*  Retour      : Adresse de la structure mise en place.                       * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +GArmV456Register *g_armv456_register_new(uint8_t index) +{ +    GArmV456Register *result;                /* Structure à retourner       */ + +    result = g_object_new(G_TYPE_ARMV456_REGISTER, NULL); + +    result->index = index; + +    return result; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : reg = registre à consulter.                                  * +*                                                                             * +*  Description : Fournit l'indice d'un registre ARM v4/5/6.                   * +*                                                                             * +*  Retour      : Inditifiant représentant le registre.                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +uint16_t g_armv456_register_get_index(const GArmV456Register *reg) +{ +    return reg->index; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : reg = opérande à consulter pour le calcul.                   * +*                                                                             * +*  Description : Produit une empreinte à partir d'un registre.                * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static guint g_armv456_register_hash(const GArmV456Register *reg) +{ +    return reg->index; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : a = premier opérande à consulter.                            * +*                b = second opérande à consulter.                             * +*                                                                             * +*  Description : Compare un registre avec un autre.                           * +*                                                                             * +*  Retour      : Bilan de la comparaison.                                     * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +int g_armv456_register_compare(const GArmV456Register *a, const GArmV456Register *b) +{ +    int result;                             /* Bilan à retourner           */ + +    if (a->index < b->index) +        result = -1; +    else if (a->index > b->index) +        result = 1; +    else +        result = 0; + +    return result; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : reg    = registre à transcrire.                              * +*                line   = ligne tampon où imprimer l'opérande donné.          * +*                syntax = type de représentation demandée.                    * +*                                                                             * +*  Description : Traduit un registre en version humainement lisible.          * +*                                                                             * +*  Retour      : -                                                            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +void g_armv456_register_print(const GArmV456Register *reg, GBufferLine *line, AsmSyntax syntax) +{ +    char key[MAX_REGNAME_LEN];              /* Mot clef principal          */ +    size_t klen;                            /* Taille de ce mot clef       */ + +    switch (reg->index) +    { +        case 0 ... 12: +            klen = snprintf(key, MAX_REGNAME_LEN, "r%hhu", reg->index); +            break; +        case 13: +            klen = snprintf(key, MAX_REGNAME_LEN, "sp"); +            break; +        case 14: +            klen = snprintf(key, MAX_REGNAME_LEN, "lr"); +            break; +        case 15: +            klen = snprintf(key, MAX_REGNAME_LEN, "pc"); +            break; +        case 16: +            klen = snprintf(key, MAX_REGNAME_LEN, "cpsr"); +            break; +        case 17: +            klen = snprintf(key, MAX_REGNAME_LEN, "spsr"); +            break; +        default: +            klen = snprintf(key, MAX_REGNAME_LEN, "r??"); +            break; +    } + +    g_buffer_line_insert_text(line, BLC_ASSEMBLY, key, klen, RTT_REGISTER); + +} | 
